Looks like a new firmware was released on March 12th. We're testing it now to see if it fixes the problem. We're planning to communicate with all existing customers soon and it would be nice to have a fix in-hand.

Update: We've tested a couple units running the stock firmware from February 26th and could not reproduce the issue. All V9s successfully accepted static IP addresses and were still accessible after a reboot. We also tested the new March 12th firmware and found the same thing. We have a couple of V9s being returned to us right now that supposedly have the issue, so we'll update when we get our hands on them to troubleshoot.